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 Part number 20073, Rev 0 

10 

 

QUICK TROUBLESHOOTING GUIDE 

Check these items before calling for service 

PROBLEM: 

POSSIBLE CAUSE / SOULTIONS: 

Unit does not run 

 

Electrical circuit is not 110-120V 60Hz. 

 

The power cord is not plugged in. 

 

No power at electrical outlet. Check to make sure 
breaker is not tripped or fuse is not blown. Additionally, 
make sure unit is not plugged into a Ground Fault Circuit 
Interrupter (GFCI) type of outlet.  

Unit does not maintain at the 
proper temperature 

 

Check the room temperature.  We recommend the 
refrigerator or freezer should be placed in the air 
conditioned room between 65°F to 85°F.  If the room 
temp is too warm, the refrigerator or freezer may not be 
able to maintain the interior temp at proper range.   

 

Door is not closed properly. 

 

Amount of stored product is overloaded. 

 

Product replacements are pushed against rear wall or 
interrupted the proper refrigerator air circulation.  For 
the proper air circulation, place the products evenly on 
each shelf.  Do not push against the refrigerator’s rear or 
side walls. 

 

Evaporator is blocked by frost or ice.  Remove the 
products, unplug the refrigerator or freezer power, and 
allow the unit to defrost.  If the problem still exists, call 
for service.  

Appliance runs too long 

 

Prolong door openings. 

 

Control set too cold. 

 

Room temperature is high which will make the unit work 
harder to keep cool.  

Temperature of external wall 
surface is warm 

 

The exterior walls can be as much as 30 degrees warmer 
than room temperature due to the embedded 
condenser coils. This is normal when the unit is 
operating.   

Compressor noises 

 

Check the unit level. Also ensure none of the pipes in 
the compressor area are touching each other or against 
the side.  

 

Compressor may be overheated.  Please check the room 
temp and ensure the range is within 65°F to 85°F.   

 

A buzzing noise may indicate improper voltage to the 
compressor. Check supply voltage.  

 

If the problem still exists, call for service. 

Summary of Contents for SCUCBI-0420

Page 1: ...f delivery Make sure you get a signed copy Send a written request for an inspection to the carrier B Concealed Damage This type of damage may not be discovered until the unit is being unpacked When concealed damage is discovered stop unpacking immediately and contact the carrier immediately to report the claim and request an inspection This should be done as soon as possible and in any case must b...

Page 2: ... SERVICE please have the unit s model and serial number ready as well as the problem description The model and serial number is located on the serial tag which can be found on the interior left OR right upper wall of the unit For convenience you may want to record the following information here for easy access in the future Model number __________________________________ Serial number ____________...

Page 3: ...ry receipt acknowledging the damage This has to happen at the time of delivery or it won t happen at all Keep a copy for your records and send another to the carrier s damage claims department along with a formal request for an inspection report Follow up with a phone call Their contact information can be found on the carrier s web site The second type of shipping damage is concealed damage This t...

Page 4: ...his cabinet must conform to all National and Local Electrical Codes Consult the cabinet Serial Data plate for voltage cycle phase and amp requirements before making connection VOLTAGE SHOULD NOT VARY MORE THAN 5 FROM SERIAL PLATE RATINGS A separate circuit is recommended to prevent possible loss of product due to over loading or failure of other equipment on the same circuit PROTECT THE CIRCUIT WI...

Page 5: ...pecially if the weather is very hot This is normal The motor compressor will cycle normally as soon as the excess heat has been removed TEMPERATURE CONTROL NOTE The control is preset at the factory to provide the desired air and product temperatures inside of the unit and requires no further adjustment Please contact the manufacturer s Technical Service Department before making any adjustments to ...

Page 6: ...anged through the bottom front grill Please ensure the bottom front grill is free from dust or any object that may block the airflow When loading the top shelf avoid blocking the evaporator fan s if installed There should be at least 4 inches of clearance around the fan to allow proper air flow Do not overload the unit Maximum suggested load is about 75 of the chamber volume Additionally the load ...

Page 7: ...vides the following functions Red LED for visual indication of an alarm condition Beeper for audible indication of an alarm condition A preprogrammed 5 minute delay from the time a set point is attained until an alarm condition is declared This prevents spurious alarms for things like door openings Operating Mode The Electronic Temperature Control normally displays the current interior temperature...

Page 8: ...w Pon The control keys are now unlocked and you can perform the programming functions below Adjusting the temperature control set points NOTE The temperature control set points are preset at the factory to provide the desired air and product temperatures inside of the unit and require no further adjustment Please contact the manufacturer s Technical Service Department before making any adjustments...

Page 9: ...display Press the UP or DOWN keys several times to cycle through the parameters until CF is displayed Press SET to display the current setting either C for Celsius or F for Fahrenheit Use the UP or DOWN key to choose the desired setting Press SET again to lock it in Press SET and UP to return to Operating Mode To change the Hi or Low Alarm set points press SET and DOWN keys for 3 seconds to enter ...

Page 10: ...ed the proper refrigerator air circulation For the proper air circulation place the products evenly on each shelf Do not push against the refrigerator s rear or side walls Evaporator is blocked by frost or ice Remove the products unplug the refrigerator or freezer power and allow the unit to defrost If the problem still exists call for service Appliance runs too long Prolong door openings Control ...

Page 11: ...above 40C 104F Stop using immediately The display shows LL and the compressor does not run The ambient temperature is below 40C 40F Stop using immediately MOISTURE DURING THE SUMMER SEASON The amount of moisture condensation or high humidity related issues increase during the summer and in most cases will self resolve when the weather cools down Please note a refrigeration system does NOT generate...

Page 12: ... not use commercial household cleaners ammonia or alcohol to clean handles Use a soft cloth to clean smooth handles Do not use a dry cloth to clean smooth handles STAINLESS STEEL CARE AND CLEANING Use the proper tools When cleaning stainless steel surfaces take care to use non abrasive tools Soft cloths and plastic scouring pads will not harm the steel s passive layer Stainless steel pads may be u...

Page 13: ...t removal on all finishes Grease oil Any good commercial detergent Apply with a sponge or cloth Restoration Passivation Benefit Super Sheen Passive Film Breakdown Corrosion on metals is everywhere We recognize it quickly on iron and steel as unsightly yellow orange rust Such metals are called active because they actively corrode in the natural environment Contrary to popular belief Stainless Steel...

Page 14: ...gging to avoid electrical hazard DO NOT ADJUST THE TEMPERATURE CONTROL Remove the product and leave the door open while defrosting the freezer Place towels in the bottom of the freezer to catch the frost When all frost has fallen remove the towels Defrosting tips If the frost is soft remove it with a plastic scraper If the frost is glazed and hard fill deep pans with hot water and place them insid...

Page 15: ...be paid by the customer ADDITIONAL THREE YEAR COMPRESSOR WARRANTY In addition to the two 2 year warranty stated above Horizon Scientific Inc warrants its hermetically and semi hermetically sealed compressors to be free from defects in both material and workmanship under normal use and service for a period of three 3 additional years from the end of the initial two 2 year warranty period but not to...

Page 16: ...nt damage during transit or installation fire flood or other external causes It does not apply to defects resulting from failure to properly install operate or maintain the product in accordance with the printed instructions provided or damage caused by the storage of any corrosive material that comes in contact with the interior or exterior portions of the cabinet or the use of spark producing eq...

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